Last week I went to San Francisco to deliver a sculpture - wall mounted #82;
And, Aaron, the lucky recipient of #82 had three sculptures from Stan Bennett a kinetic artist that lives in Ferndale, Ca. Stan's sculptures used a rotating arm to lift the marbles. Actually they used several in a row to get the balls from the bottom back to the top. I was so impressed with the arms, that I went home and used one of my new motor mounts for this type of lift, the ARM lift.
So here it is. Under the hood, it is still a basic desktop with a tetrahedron frame. But this baby has three tracks, is 26" wide X 18" high X 19" deep and is automatic.